Hose and method of making same



N. S. DODGE.

HOSE AND METHOD OF MAKING SAME.

APPLICATION FILED SEPT-10.1919.

Patented May 16, 1922..

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NATHANIEL S. DODGE, F EMERYVILLQE, CALIFORNIA.

HOSE AND METHOD OF MAKING Specification of Letters Patent. Paf ted M 1g Application filed September 10, 1919; Serial No. 822,917.

- To'aZZ whom it may concern:

Be it known that I, NATHANIEL S. Donor, a citizen of the United States, residing at Emeryville, in the county of Alameda and State of California, have invented new and useful Improvements in Hose and Methods of Making Same, of which the following is a specification.

This invention relates to hose and particularly relates to the manufacture of conducting or suction hose.

At the present time there is a great demand for a flexible hose, through which transmitting oil, benzine, gasoline, or other like liquids may flow, either by gravity or suction.

Past experience has proven that most hose is unfitted for such use as the liquids traveling therethrough will attack the rubber and will very soon cause the hose to break down. For this reason numerous attempts have been made to treat the interior of such hose and to reenforce the wall thereof so that no objectionable chemical action will take place and the walls will be held in a semi-rigid and flexible position without possibility of collapse.

Most of the hose designed with this object in view has proven ineffective and it is the principal object of the present invention to provide a flexible hose for the purpose specified, which will be impervious to the action of the liquids passing therethrough and at the same time will embody reenforcing means for preventing the collapse of the hose under normal or excessive suction strains.

The present invention contemplates the use of a hose, the base of which is woven, having its warped strands of cotton or other similar material and its filler threads of strands of wire and fiber successively or alternately arranged. This base is then covered with a layer of rubber, thereafter enclosed within a woven or knit outer jacket, 3

the ends of whichare closed in such a manner as to prevent fluid from seeping through the base portion of the hose and following the metallic filler wires.

The invention is illustrated in the accom panying drawing, in which Fig. 1 is a view in section and elevation, showing the fragmentary portion of hose dissected to illustrate its construction and the successive stages of its manufacture.

Fig. 2 is a fragmentary View in elevation,

showing one of the metallic filler threads and the cap applied to the end thereof.

Referrlng to the drawings, it will be seen that a base portion 10 is. formed, having warped strands 11 of cotton, flax, ramie or other fibrous material and filler strands 12' ing. This construction will provide a suit-' able base for a suction or conducting hose and will insure that a hose embodying this base will have flexibility as Well as sufficient strength to prevent its collapse.

Covering the base 10 is a layer of cement 14, upon which a layer of plastic material 15 is applied. This material is preferablyrubber of such a chemical construction as to withstand the corrosion of the liquid pass- 1ng through the hose and is usually what is known to the trade as oil resisting rubber. Due to the fact that the fluid passing through this hose may exert varying pressures, it would be a natural consequence that this action would force the rubber covering 15 outwardly and away. from the base. In order to reenforce the rubber and prevent such an objectionable result, a layer of cement 16 is applied to the outer surface of the rubber and the structure thus formed passed through a rotary loom which will weave a fabric outside covering 17 in place around the hose to provide a close fitting jacket which not only prevents the rubber from becoming distended but protects it from inury.

It has been found in practice that metallic reenforcing members in hose act as conductors of liquid and that it is therefore necessary to enclose the ends of the metallic strands to prevent this conduction. With that idea in view, the fillers 12 are fitted with small rubber caps 18, as shown in Fig. 2, and these caps are then enclosed and embedded within a rubber end fitting 19 which extends over the outer jacket 17 and over the base portion of the hose to form a thorough protection therefor and to preclude the possibility of longitudinal travel of a liquid along the fibers of the hose.'-

Briefly reviewing the process, it will be remembered that first a cotton liner is woven, incorporating filler strands of fiber and wire, preferably arranged in alternate relation to each other, after which this base is covered with cement and then supplied with a coating of oil resisting rubber which is thereafter vulcanized. The vulcanized rubber is then covered with cement and a fabric outer jacket applied thereto, the ends of the jacket and the ends of the fillers of the base being then enclosed within the sealing caps 19, which arevulcanized in position.

It will thus be seen that by the process outlined and by the utilization of the material specified, a very flexible hose will be provided, through which oil or other such liquids may be conducted and which hose will resist the corrosion of the liquids and will be so reenforced circumferentially as to prevent the collapse of the walls under suction action. a

While I have indicated the preferred method of carrying out my invention and have shown a preferred form of the device constructed, it will be evident that various changes in the combination and arrangement of parts might be made by those skilled in the art, Without departing from the spirit of the invention as claimed.

Having thus described my inventiomwhat I claim and desire to secure by Letters Patent is- 1. A hose formed of fiber and wire interwoven, the wire being introduced circumferentially and arranged in alternate or semi-alternate spirals and held and covered by longitudinal fiber strands, an oil resisting plastic cover enclosing the woven structure,

a fabric outer jacket for reenforcing the plastic covering and protecting it from external injury, and means mounted upon the ends of the hose thus formed for preventing the seepage of liquid into the wall structure thereof.

plastic covering and protecting it from external injury, means mounted upon the ends of the hose thus'formed for preventing the seepage of liquid into the wall structure thereof, and a cap applied to the ends of the wire fillers for excluding liquid therefrom.

3. A hose having a base formed of fiber and wire woven together, with wire disposed circumferentially of said base member, a covering of oil resisting plastic material around said base, and .a fiber jacket enclosing the structure thus formed, and means for embedding the ends of the wire in rubber.

4. A method of producing hose which consists in first forming a continuous tubular base made of wire and fabric interwoven and then applying a circumferential layer of plastic material to the outer surface thereof, after which a jacket is woven over the plastic material and the ends of the hose wall then completely sealed by rubber end caps.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

NATHANIEL S. DODGE. 

